导航：题目详情 | 答案解析 | 相关问题 | 最新问题 A．afterB．beforeC．sinceD．till 外语类 2019-10-22 19:56:03 英语考试 已帮助 人 A．afterB．beforeC．sinceD．till 热搜：a是b的充分条件,b是a的必要条件吗 答案解析 难度★★☆ 搜索 正确答案：B解析：此题属于语法题。it will be years before意为“在……之前需要若干年”，根据句意，中国要取得和西方先进的管理和经营相当的水平之前要若干年，故选项B before符合题意。其他选项：A after，C since和D till均与原文意思不符。 相关问题 1、John fell asleep he was listening to the music.A．afterB．beforeC．whileD．as soon as 2017-07-30 2、Were working______the clock to accomplish the proposal before Tuesday.A．afterB．beforeC．aga 2017-09-07 3、I worked _____12 last night. Of course _____then I was really tired.A. till afterB. at 2017-12-28 4、A．AfterB．BeforeC．SinceD．Behind 2019-10-22 5、A．inB．asC．toD．till 2020-02-24 6、【B4】A．afterB．beforeC．sinceD．when 2020-03-02
